a bit ot, and for those of you who buy tools just of the hell of it, here's a good option for loosening badly rusted bolts and nuts:
bolt buster - heat induction tool
if melting hoses and wiring like i have done trying to get into tight spots with oxy-acetylene is a risk, try it. I really like it.
I have this same tool and it is BY FAR my most used power tool. I do everything with it.I have become a Makita fan as of late. I have this: MAKITA Industrial Power Tools - Tool Details - BTD142HW
And it is excellent! I used it on some recent engine bay work (loosening only, not tightening!) Its great for all kinds of tasks. Lightweight and compact but still plenty or torque.
Probably not for Daytona pit crew, but they're certainly professional grade enough for the home garage.
I only wish they made an electric rachet for extreme tight places.